étancher înseamnă în Engleză

quench [quenched, quenching, quenches]▼◼◼◼(to satisfy thirst)
verb
[UK: kwentʃ] [US: ˈkwentʃ]The giraffes have quenched their thirst. = Les girafes ont étanché leur soif.

slake [slaked, slaking, slakes]▼◼◼◻verb
[UK: sleɪk] [US: sleɪk]

staunch [staunched, staunching, staunches]▼◼◻◻(to stop the flow of (blood))
verb
[UK: stɔːntʃ] [US: ˈstɒntʃ]In order to staunch the flow of blood, apply direct pressure to the wound. = Pour étancher le sang, exercez une pression directe sur la plaie.